<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>饼图</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 2. 为ECharts准备一个具备大小（宽高）的Dom -->
      <div id="main" style="width: 750px;height:500px;"></div>
    </el-card>
  </div>
</template>

<script>
// 1. 导入 echarts
// import echarts from 'echarts'
// import _ from 'lodash'

export default {
  data () {
    return {
      // 需要合并的数据
      // options: {
      //   title: {
      //     text: '用户来源'
      //   },
      //   tooltip: {
      //     trigger: 'axis',
      //     axisPointer: {
      //       type: 'cross',
      //       label: {
      //         backgroundColor: '#E9EEF3'
      //       }
      //     }
      //   },
      //   grid: {
      //     left: '3%',
      //     right: '4%',
      //     bottom: '3%',
      //     containLabel: true
      //   },
      //   xAxis: [
      //     {
      //       boundaryGap: false
      //     }
      //   ],
      //   yAxis: [
      //     {
      //       type: 'value'
      //     }
      //   ]
      // }
    }
  },
  created () {},
  // 此时，页面上的元素，已经被渲染完毕了！
  async mounted () {
    // 3. 基于准备好的dom，初始化echarts实例

    const echarts = require('echarts')
    const myChart = echarts.init(document.getElementById('main'))

    const { data: res } = await this.$http.get('/server/statistics/report1')
    const { data: res2 } = await this.$http.get('/server/statistics/getName')
    console.log(res2)
    // if (!(res.data.flag)) {
    //   return this.$message.error('获取折线图数据失败！')
    // }
    console.log('==>' + res)
    var option = {
      tooltip: {
        trigger: 'item',
        formatter: '{a} <br/>{b}: {c} ({d}%)'
      },
      legend: {
        orient: 'vertical',
        left: 10,
        data: ['洗发水', '薯片', '水壶', '鼠标', '键盘', '沐浴露']
      },
      series: [
        {
          name: '访问来源',
          type: 'pie',
          radius: ['50%', '70%'],
          avoidLabelOverlap: false,
          label: {
            show: false,
            position: 'center'
          },
          emphasis: {
            label: {
              show: true,
              fontSize: '40',
              fontWeight: 'bold'
            }
          },
          labelLine: {
            show: false
          },
          data: [
            { value: 335, name: '薯片' },
            { value: 310, name: '水壶' },
            { value: 120, name: '鼠标' },
            { value: 65, name: '键盘' },
            { value: 420, name: '沐浴露' },
            { value: 548, name: '洗发水' }
          ]
        }
      ]
    }
    // // 4. 准备数据和配置项
    // const result = _.merge(option)
    // option.series = res
    // option.legend = res2
    // 5. 展示数据
    myChart.setOption(option)
  },
  methods: {}
}
</script>

<style scoped>

</style>
